Mild Steel Double Bag Mobile Dust Collector 10 Hp, Automation Grade: Fully Automatic Electrostatic forces are used in dust collectors to separate dust from exhaust gases. They function by applying a negative electric charge to airborne particles as they pass through an ionized field between electrodes within a chamber. An electrostatic dust collector is a system that collects dust and other impurities from air or gas to improve the quality of air released from industrial and commercial processes.